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radiotelegraphy
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The answer RADIOTELEGRAPHY has 1 possible clue(s) in existing crosswords.
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The word RADIOTELEGRAPHY is VALID in some board games. Check RADIOTELEGRAPHY in word games in Scrabble, Words With Friends, see scores, anagrams etc.
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Definitions of radiotelegraphy in various dictionaries:
noun - telegraphy that uses transmission by radio rather than by wire
noun - the use of radio to send telegraphic messages (usually by Morse code)
Telegraphy in which messages are transmitted by radio instead of wire.
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System of transmitting messages that has been widely superseded by satellite technology |
Last Seen in these Crosswords & Puzzles |
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Sep 27 2015 The Telegraph - General Knowledge |
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Telegraphy in which messages are transmitted by radio instead of wire. |
the use of radio to send telegraphic messages (usually by Morse code) |
telegraphy that uses transmission by radio rather than by wire |
Radiotelegraphy description |
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Wireless telegraphy means transmission of telegraph signals by radio waves; a more modern term for this is radiotelegraphy. Due to its simplicity, radiotelegraphy was the first means of radio communication; the first radio transmitters and receivers invented in 1894-5 by Guglielmo Marconi used radiotelegraphy. It continued to be the only type of radio transmission during the first three decades of radio, called the "wireless telegraphy era" up until World War 1, when the development of amplitude modulation (AM) radiotelephony allowed sound (audio) to be transmitted by radio. In radiotelegraphy, information is transmitted by pulses of radio waves of two different lengths called "dots" and "dashes", which spell out text messages, usually in Morse code. In a manual system, the sending operator taps on a switch called a telegraph key which turns the transmitter on and off, producing the pulses of radio waves. At the receiver the pulses are audible in the receiver's speaker as beeps, w |